/*
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 * and open the template in the editor.
 */

package daw;
/*
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 * and open the template in the editor.
 */


import daw.bean.Usuario;
import java.io.*;
import java.net.*;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceUnit;
import javax.persistence.Query;
import javax.servlet.*;
import javax.servlet.http.*;

/**
 *
 * @author Christian
 */
public class NewServlet extends HttpServlet {

@PersistenceUnit
private EntityManagerFactory emf;


/**
    * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
    * @param request servlet request
    * @param response servlet response
    */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        EntityManager em;
        em = emf.createEntityManager();
        int idUsuario;
        try {
            idUsuario = Integer.parseInt(request.getParameter("usuario"));
            Usuario usuario;

            usuario = (Usuario)em.createNamedQuery("Usuario.findByIdUsuario").setParameter("idUsuario", idUsuario).getSingleResult();
            if(usuario!=null){
            out.println("usuario encontrado:" +usuario.getUser());
            out.println(usuario.getRolUsuario().getNombre());
            }else
            {
                out.println("usuario no encontrado en la base");
            }
            /* TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet NewServlet</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet NewServlet at " + request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");
            */
        }
        catch(Throwable e){
            out.println("error: ");
            e.printStackTrace(out);
        }
        finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
    * Handles the HTTP <code>GET</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
    * Handles the HTTP <code>POST</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
    * Returns a short description of the servlet.
    */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}
